Article Abstract

	Title:	Diminishing signalling traffic for authentication in mobile communication system
	Author:	Chi-Chun Lo, Kuen-Liang Sue
	Address:	Institute of Information Management, National Chiao Tung University, 1001 Ta Hsueh Road, 30050 Hsinchu, Taiwan. ' Department of Information Management, National Central University, No. 300 Jung da Road, 320 Chungli, Taiwan
	Journal:	International Journal of Electronic Business 2004 - Vol. 2, No.3  pp. 274 - 282
	Abstract:	In global system for mobile communication, the VLR requests the HLR for assistance in authenticating the visiting user. The authentication centre (AuC) in the home network generates 3-tuples and sends them back to the VLR for subsequent authentications during the user's residence. If these 3-tuples are used up before the MS's leaving, another request is issued by the VLR. The request is expensive, because it needs to access the HLR/AuC. Traditionally, a fixed-K strategy is used. That is, K 3-tuples are sent to the VLR for each request. However, much waste of 3-tuples is observed, especially when an inactive user is considered. Hence, we propose a dynamic-K (DK) strategy to reduce the waste and diminish the signalling traffic for authentication. Simulation results show that the DK strategy can effectively determine the appropriate K value. Not only the waste but also the number of requests is diminished efficiently.
	Keywords:	authentication; HLR; VLR; authentication centre; mobility management; overflow control; mobile communications; signalling traffic reduction.
	DOI:	10.1504/IJEB.2004.005142
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